<template>
  <el-container class="home-contatiner">
    <!-- 头部区域 -->
    <el-header>
      <div>
        <img src="../../assets/logo.png"/>
        <span>电商后台管理系统</span>
      </div>
      <el-button type="infor" @click='logout'>退出</el-button>
    </el-header>
    <!-- 页面主体 -->
    <el-container>
      <!-- 侧边栏 -->
      <el-aside :width="isClose?'64px':'200px'">
        <div class="toggle-button" @click="toggleCollapse">|||</div>
        <!-- 侧边栏侧边区 -->
        <el-menu :default-active="activePath" :router="true" :collapse-transition="false" :collapse="isClose" :unique-opened="true" background-color="#333744" text-color="#fff" active-text-color="#00aaff">
          <!-- 一级菜单 -->
              <el-submenu :index="item.id+''" v-for="item in menulist" :key="item.id">
                <!-- 一级菜单模板 -->
                <template slot="title">
                  <!-- 图标 -->
                  <i :class="iconobj[item.id]"></i>
                  <!-- 文本 -->
                  <span>{{item.authName}}</span>
                </template>
                <!-- 二级菜单 -->
                <el-menu-item @click="saveNameState('/'+subItem.path)" :index="'/'+subItem.path" v-for="subItem in item.children" :key="subItem.id">
                  <!-- 图标 -->
                  <i class="el-icon-menu"></i>
                  <!-- 文本 -->
                  <span>{{subItem.authName}}</span>
                </el-menu-item>
              </el-submenu>
            </el-menu>
      </el-aside>
      <!-- 右侧 -->
      <el-main>
        <!-- 路由占位符 -->
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>

<script>
export default {
  data () {
    return {
      menulist: [],
      iconobj: {
        125: 'el-icon-view',
        103: 'el-icon-edit',
        101: 'el-icon-goods',
        102: 'el-icon-edit-outline',
        145: 'el-icon-tickets'
      },
      isClose: false,
      activePath: ''
    }
  },
  created () {
    this.getMenuList()
    this.activePath = window.sessionStorage.getItem('activePath')
  },
  methods: {
    logout () {
      window.sessionStorage.clear()
      this.$router.push('login')
    },
    async getMenuList () {
      const { data: res } = await this.$http.get('menus')
      if (res.meta.status !== 200) return res.$message.error('res.meta.msg')
      this.menulist = res.data
      console.log(res)
    },
    toggleCollapse () {
      this.isClose = !this.isClose
    },
    saveNameState (activePath) {
      window.sessionStorage.setItem('activePath', activePath)
      this.activePath = activePath
    }
  }
}
</script>

<style lang="less" scoped>
.home-contatiner{
  height: 100%;
}
.el-header {
  background-color: #373D41;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  align-items: center;
  color: antiquewhite;
  font-size: 20px;
  > div {
    display: flex;
    > span{
      margin-left: 15px;
    }
  }
  img{
    height: 30px;
    width: 30px;
  }
}
.el-aside{
  background-color: #333744;
  .el-menu{
    border-right: none;
  }
}
.el-main{
  background-color: #EAEDF1;
}
.toggle-button{
  background-color: #4A5064;
  font-size: 10px;
  line-height: 24px;
  color: #FFF;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
}
</style>
